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authorBrian Paul <brian.paul@tungstengraphics.com>2008-08-13 14:59:48 -0600
committerBrian Paul <brian.paul@tungstengraphics.com>2008-08-13 14:59:48 -0600
commitf3048ad90ed2e4583f0f7aaf35a0f4aa581942dd (patch)
treebfc8b96a33b57b7cdd7786d1fabd1c28914ff896
parent3a1af846fe13c2a9b8c24eb7e37e11a9b42668d5 (diff)
gallium: in fallback_copy_texsubimage() create new tex surface for CPU read access
Was trying to use the strb->surface but it's made for GPU read/write only.
-rw-r--r--src/mesa/state_tracker/st_cb_texture.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/src/mesa/state_tracker/st_cb_texture.c b/src/mesa/state_tracker/st_cb_texture.c
index 147ca5b1a2..fceb260d70 100644
--- a/src/mesa/state_tracker/st_cb_texture.c
+++ b/src/mesa/state_tracker/st_cb_texture.c
@@ -933,7 +933,12 @@ fallback_copy_texsubimage(GLcontext *ctx,
struct pipe_texture *pt = stImage->pt;
struct pipe_surface *src_surf, *dest_surf;
- src_surf = strb->surface;
+ /* We'd use strb->surface, here but it's created for GPU read/write only */
+ src_surf = pipe->screen->get_tex_surface( pipe->screen,
+ strb->texture,
+ 0, 0, 0,
+ PIPE_BUFFER_USAGE_CPU_READ);
+
dest_surf = screen->get_tex_surface(screen, pt, face, level, destZ,
PIPE_BUFFER_USAGE_CPU_WRITE);
@@ -1016,6 +1021,7 @@ fallback_copy_texsubimage(GLcontext *ctx,
}
screen->tex_surface_release(screen, &dest_surf);
+ screen->tex_surface_release(screen, &src_surf);
}